CVE-2026-123323: high-severity vulnerability in JetBrains YouTrack
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.4epss 0.3%
In JetBrains YouTrack before 2025.3.170763,
2026.1.14150,
2026.2.19656 improper URL validation in the app widget host allowed apps to send REST requests without user confirmation
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Affected products
JetBrains · YouTrackRelated CVEs — JetBrains YouTrack
In the same product, most dangerous first.